Ordering of Words

In each question below, there is a sentence of which some parts have been jumbled up. Rearrange these parts which are labelled P, Q, R and S to produce the correct sentence. Choose the proper sequence.

PeopleP : at his dispensaryQ : went to himR : of all professionsS : for medicine and treatment
The Proper sequence should be:

The national unity of a free peopleP : to make it impracticableQ : for there to be an arbitrary administrationR : depends upon a sufficiently even balance of political powerS : against a revolutionary opposition that is irreconcilably opposed to it
The Proper sequence should be: